High permitivity dielectric microstrip dipole antenna
    1.
    发明授权
    High permitivity dielectric microstrip dipole antenna 失效
    高介电性微带偶极天线

    公开(公告)号:US5021799A

    公开(公告)日:1991-06-04

    申请号:US374817

    申请日:1989-07-03

    IPC分类号: H01Q9/28

    CPC分类号: H01Q9/285

    摘要: A miniature microstrip dipole antenna is constructed on a high permitivity dielectric substrate for compactibility with microwave monolithic integrated circuit (MMIC) technology. The antenna comprises two dipole arms coupled to opposite faces of the substrate. The dipole arms are coupled to a microstrip transmission line through a tapered balun. The tapered balun comprises two conductors on opposite faces of the substrate which are coupled to corresponding dipole arms. The conductors are separated laterally (with respect to the width of the face of the substrate) a calculated distance, and are gradually tapered. This allows the balun to efficiently transform unbalanced signals at the microstrip transmission line to balanced signals at the plurality of dipole arms. Alternatively, the balun allows balanced signals at the dipole arms to be efficiently transformed to unbalanced signals at the microstrip transmission line. To achieve additional radiation directivity, a ground plane is coupled to and parallel with a back face of the substrate. By using a high dielectric substrate, the cavity formed between the substrate and the ground plane is relatively very shallow.

    摘要翻译: 微型微带偶极天线由高介电性介质基片构成,用于微波单片集成电路(MMIC)技术的紧凑性。 天线包括耦合到衬底的相对面的两个偶极臂。 偶极臂通过锥形平衡 - 不平衡转换器耦合到微带传输线。 锥形平衡 - 不平衡变压器包括耦合到对应偶极臂的衬底相对面上的两个导体。 导体横向(相对于基板的表面的宽度)分开计算的距离,并逐渐变细。 这允许平衡 - 不平衡变换器有效地将微带传输线处的不平衡信号转换成多个偶极臂处的平衡信号。 或者,平衡 - 不平衡转换器允许在偶极臂处的平衡信号被有效地转换成微带传输线上的不平衡信号。 为了获得附加的辐射方向性,接地平面耦合到衬底的背面并平行于衬底的背面。 通过使用高电介质衬底,形成在衬底和接地平面之间的腔相对较浅。

    Dual space fed parallel plate lens antenna beamforming system
    2.
    发明授权
    Dual space fed parallel plate lens antenna beamforming system 失效
    双空间馈送平行平板透镜天线波束成形系统

    公开(公告)号:US4595926A

    公开(公告)日:1986-06-17

    申请号:US557014

    申请日:1983-12-01

    摘要: A beamforming system for a linear phased array antenna system which can besed in a monopulse transceiver, comprising a pair of series connected parallel plate constrained unfocused lenses which provide a suitable amplitude taper for the linear array to yield a low sidelobe radiation pattern. Digital phase shifters are used for beam steering purposes and the unfocused lenses decorrelate the quantization errors caused by the use of such phase shifters.

    摘要翻译: 一种用于线性相控阵天线系统的波束成形系统,其可用于单脉冲收发器,包括一对串联连接的平行板约束的未聚焦透镜,其为线性阵列提供合适的幅度锥度以产生低旁瓣辐射图。 数字移相器用于光束转向目的,并且未聚焦的透镜将使用这种移相器引起的量化误差去相关。

    Thin film resistive loading for antennas
    3.
    发明授权
    Thin film resistive loading for antennas 失效
    天线薄膜电阻负载

    公开(公告)号:US5170175A

    公开(公告)日:1992-12-08

    申请号:US749236

    申请日:1991-08-23

    IPC分类号: H01Q1/36 H01Q9/27

    CPC分类号: H01Q1/36 H01Q9/27

    摘要: A resistively terminated antenna and method of fabricating a resistively terminated antenna comprising providing a resistor-conductor laminate, selectively removing portions of the resistive and conductive layers to produce an antenna design and mounting the resistor-conductor laminate on the dielectric substrate. Etching selectively removes portions of the conductive and resistive layers, and mounting is accomplished using a spacer, film resistor, and ground plane, where the resistor-conductor laminate is fixed to the surface of the dielectric substrate opposite the film resistor. The film resistor may have a central aperture.

    摘要翻译: 一种电阻端接天线和制造电阻端接天线的方法,包括提供电阻 - 导体层叠体,选择性地去除电阻和导电层的部分以产生天线设计并将电阻 - 导体层叠体安装在电介质基片上。 蚀刻选择性地去除导电层和电阻层的部分,并且使用间隔物,膜电阻器和接地平面实现安装,其中电阻器 - 导体层压板固定到与电阻器相对的电介质基板的表面。 薄膜电阻器可以具有中心孔径。